Steam-operated ice and snow plow



April 22, 1930. R. KLIMA ET AL 1,755,695

' STEAM OPERATED ICE AND SNOW PLOW I Filed Jan. 5, 1927 9 Sheets-Sheet lRuDoLF h'LlMA HANs REIE CHENBACHEE INVEN TORS By mm CL Att rnoy.

April 22, 1930. KLlMA ET AL STEAM OPERATED ICE AND snow PLOW Filed Jan.3, 1927 9 Sheets-Sheet 2 ERMWM C A MBN NW2 K m Rm.

FL PLFIIIII n. 1

April 22, 1930. R. KLIMA ET AL STEAM OPERATED ICE AND.SNOW PLOW FiledJan. 5, 1927 9 sheets-sheet s Ru DOLF Ku M A HANs REISCH EN BACHEI?lNvENToRs m Mtnmoy.

April 22, 1930. R. KLIMA ET AL 1,755,695

STEAM OPERATED ICE AND SNOW PLOW Filed Jan. 3, 1927 9 Sheets-Sheet 4RUDOLF KLIMA HANS REIS'CHENBACHER lNVENTORfi L Attorney.

April 22, 1930. KUMA ET AL 1,755,695

STEAM OPERATED ICE AND SNOW PLOW Filed Jan. 5: 1927 9 Sheets-Sheet 5 WAtllrnpg.

A fii 2-2, 1930. R, KL'MA E1- AL 1,755, 95

I STEAM OPERATED ICE AND SNOW PLOW I Filed Jan. 5, 192 9 Sheets-Sheet 6RuooLFKuMA HANS REISCHLNBACHEIE |NVENTQQ5 By v m; mm

April 22, 1930. R. KLIMA ET AL 1,755,695

STEAM OPERATED ICE AND SNOW PLOW Filed Jan. 5, 1927 9 Sheets-Sheet 7RuooLF KLIMAV HANS REISCHENDACHEIR INVE NT 0 R 5 m Attorney.

April.22, 1930. I KLIMA ET AL 1,755,695

STEAM OPERATED ICE AND SNOW PLOW Filed Jan. 3, 1927 9 Sheets-Sheet 8 Ill! RUDOLF KLIMA HANS RHSCHENBACHER INVE NToRs Attorney April 22, 1930.R. KLIMA ET AL 1,755,695

STEAM OPERATED ICE AND SNOW PLOW Filed ail; 1927 -9 s ets-sh et 9 RUDOLFKLIMA HAN5 REISCHENBACHEK mvENT Rs 1 QWMML Attorney.

Patented Apr. 22, 19:30

, RUDOLFLKLIMA: Ann HANS RQEISCHENBACHER, or snnznune, AUSTRIAs'rnnm-ornnn rnn ICE AND snow new Application filed. January 3, 1927,Serial No. 158,717, and in Austria January 9, 1926.

This invention relates to improvements in steam operated ice andgsnowplows of the character described in our United States Letters Patent No.1,601,533, issued Sop v5 tember 28, 1926. I

The essential feature of the present invention consists in that insnow-plows, the

shovels and vanes "are'preferablyoperated by steam and arranged on thesnow-plow halves, which are disposed on the front wall of the railwayengine,-and'which are rotatable about apivot, which is disposed in theupright middle axis of the rail-track, in'such a manner that theordinary angleof' the 5 wedge-like shape of the plow can be changed intoan inclined surface which clears the snow to one side or the other ofthe rail track.

Several modes of carrying'out the present invention are illustrated byway of example on the accompanyingsheets of drawings in which *Fig. 1 isa rear view of two constructions, wherein the back wall is'removed andthe 5 cylinders are illustrated in section;

Fig. 2 is a front view; of the constructions shownin Fig. 1, wherein thecovering plate of'the snow plow is partly broken away.

,Fig. 3 is a planv-iew and sectional view 30 respectively, the sectionbeing taken on lines 38 of Figure 1. e

Fig. 4 is a rear view of a third modified construction,

Fig. 5 a front view ofthe same device shown in Figure 4, showing thecovering plate partly broken away,*and I Fig. 6 .a sectional view of thesame, the

section being taken on'lines 66 of Figure 7.- Fig. 7 illustrates in planview, and

Fig. 8 shows diagrammaticallythe walllock and the arrangement foradjusting the shovel or scoop. I Fig. 9 illustrates a rope drive foroperate ing the shovel or scoop of the secondconstruction. I

Fig. 9 is a substantially sectional View of the pistonandassociatedparts taken on lines 9 ,9 of Figure 9.

Fig.10is a sectional view of-the cutting edge of thesnow plow. r

,tions respectively. 1

Fig. 11 illustrates diagrammatically the positions into which the snowplow can be turned s i c r j Fig. 12 shows a sectional View of a fourthmodified construction of the invention, the section being taken on lines1212- of Figure 13. Fig. 13 is a plan View, Fig. 14 showstheextensiblelongitudinal frame, 7

Fig. 15 illustratesthe extension of the wall on turning out, and Y jFig. 16a perspective view of another 0on struction of the cutting edge.

Fig. 17 illustrates in plan view a ground support, and

Figs. 18 and'19 show the latter in the in wardly screwed and outwardlyscrewed'pos'i The steam snow plow, according toftlhe present invention,consists of two parts, namely the outwardly and inwardly rotatable wallswhich are provided with shovels adapted to be raised and lowered, andthe known movable side-wings. I All movable parts are operated by steam,compressed-air or the like.

In all four constructionsthe 'walls' are swung outwardly by singlechambered cylinders 1 to which are pivoted piston rods (Figs. 1 to 7)and which are arranged in the frame of the snow plow parallel with theaxis of the rail. After the discharge of steam, the piston rods aredrawn inward automatically either as shown in Fig. 1 by resiliently-lo-FFEQE cated steam pistons, whereby the spring=2 is illustrated in theinward and'extended position' according to the positions of the twowalls, or by a return spring13 (Figs. .4 and 7 arranged outside thecylinder. The turned out walls and shovels or scoops are'illiistrated inFig. 3 and diagrammatically in Fig. 11. I 'By'means of strong hingedjoints 4 (Figs. 1 and 10)the simple vertical walls are arrangedrotatable round a shaft .6 supported in two I beam supporting members 5igs. 1 to 7 10 and 12:). The joints 4 are riveted to horizontallydisposed top and bottom vU-shaped members 7., whereby the wall :is

properly strengthened. The already known shovels or scoops 9, which areadapted to be raised, lowered and adjusted, form the 6X- tent of thedown stroke of the walls, terminating about 17 centimetres above the upper face 8 of the rail. 1n the lowered position, the shovels 9 rest onthe rails and with the movable jaws on the bottom wall U-shaped members7 form an effective lateral bearing of the walls, because they areopened outonly after overcoming the closing springs 10. The shovelsoverlap each other (Fig. 6), so that they can be freely turned inwardand outward. For clearing stations and.

pistons on raising the shovels orscoops.

The strengthening of the outwardly moved walls against the pressure ofthe snow is carried out by "two arched members 15' of U-shaped iron,which are riveted to the U-shaped wall members 'K (Fig. 8) and slide onthe two U-shaped frame 'members 16 (Figs. 1, 3'and 4). The end of thearched member terminates in a suitably shaped riveting sheet 17 with 'around extension (Figs. 1 and 8). which theoutward position of the wallcooperates with a similar shaped, resiliently located supporting sheet'18,fiXed to the U-shaped frame iron 16. Be-

- fore the extension of the riveting sheet 17 enters into the hollowspace or groove of the supporting sheet 18 and thereby is locked,

the same slides and depressesthe resiliently located support and therebyreduces the hard contact in the extended position. The drawing-in of thewall. which after the discharge of the steam from the cylinder 1 isaccomplished automatically by the piston-spring 2 or the return spring3, takes place after the raising of the shovels. Owing to the raising ofthe jaws 14 (Fig. 8) by means of an operating bar 19, a lever 20 ismoved along at the outside of the arched member, which with its otherend pressed against the yielding, locking, supporting member 18 unlocksthe arched member by depressing the same, e. g. moves out of the hollowgroove the roundextension of the riveting sheet 17 According to thechamfering or shaping of the round arched end or of the riveting sheetand of the corresponding hollowgroove in the supporting member 18, theresistance of the lock may be regulated conveniently, but

The shovels are raised either at the extended or drawn-in side.

The left half of one construction is shown in Figs. 1 and 3, while theright half thereof is illustrated in Fig. 2. The singlachamber liftingcylinder 20 is secured directly to the wall of the snow plow auditspiston rod directly engages the jaw-connecting rod 21 of theshovel and,on being supplied with steam,

raises the same against the action of the-piston-spring 22. Ondischarging the steam, the spring depresses'the jaws 14' and the shovelrespectively. Steam is supplied by a steam =5 piping 23, located in thewall and arranged rotatable in the centre of the snow plow-shaft 6(Fig. 1) by means of a ball andsocketjoint 24. For the right hand sidelifting cylinder,

the steam piping or the joint is arranged at the bottom side of theshaft. The two lifting cylinders are provided with a common steam pipingfrom the drivers stand to the forward 7 wall of the engine and arecontrolled by a two-way valve of simple construction, because theshovels operate simultaneously.

The right half of another construction is shown in Figs. 1 and 3, theleft half thereof in Fig. 2 and'Fig. 9 shows the drive on an enlargedscale, and the same consists of a lifting cylinder 25, which is locatedunderneath the cylinder 1 for pushing out the wall and with the same ona common supporting plate, the cylinder 25 being directly coupled with arope-pulley 26 by means of a rod 27 of the simple construction. Therope-pulley is provided with a straight crank-loop 28, whose engagingblock (Figs. 9 and 9 is taken along by the piston-rod 27. One end of thewire-rope is secured-to the rope-pulley, while the other end thereof isdirectly connected with the j aw-connecting rod 19 of the shovel.

On charging with steam the one sided acting cylinder, thepiston-rod bymeans of the crank-loop takes along the rope-pulley, on which is woundup or off the wire-rope according to its rotation. The lifting cylinder25 is of such dimensions, that the tension springs '29 (Fig. 1) engagingthe movable shovel-jaws, can be overcome together with the weight of thesnow resting on the shovel. The four positions of the slot or link or ofthe piston are diagrammatically shown in Figs. 9 and 9 On extending thewall at first the shovel is lifted or the slot is moved forward from theend position 1 in Figs. 9 and 9 into the position 2. On moving out thewall by means of the extension-cylinder 1, the ropepulley is turnedoutwardly by overcoming the circumferential force by means of thelifting cylinder 25 charged withsteam and the rope is Wound off to theextent of the length of the extension-cylinder, whereby the slot comesinto the position-3. If now the lifting cylinder 25 is emptied, the ropepulley is placed into the second end position 4 by the shovel-spring 29.During these three movefed b 1 a common steami in and are 0011- trolledby a two-way cock.

A third construction is shown in Figs. 4 to 7 and illustrates theraising and lowering of the shovels by means of a leverageBO. The

t lifting cylinder 31 is directly secured to the bottom double T-shapedframe-support and with theaid of itspiston-rod and an intermediatepulley 32 as'well as the common rope 33 and the levers 30, secured tothe walls,

operates theshovels,e. g. the same are lifted during rotation. trolledby a two'way cock.

'a 'ainst the-action of sorin 's 34. GXQItlH a I: L t a;

The shovels are autodownward pressure. matically lowered by the springson emptying the cylinders. The stroke of the piston and rope are .ofsuch dimensions,'that the extension of the stroke effected by theturningin and out of. the wall is taken into consideration. Owing to theweight of the piston, the rope remains in tension in case of loweredshovels. The levers slide on suitable guides 35 in order to relieve thelever-pins The lifting cylinder is con- In another modified constructionas shown 1 in Figs. 12 and 13 the raising and lowering of the wholewalls of the snow plow is effected by a lifting cylinder 36, mounted onthe bottom double T-shaped frame support 5. The pivotally attachedpiston-rod 37 of the said cylinder engages a lever 38, which consists oftwo parts and is rotatably secured on the 7 upper double T chapedsupport and which by means of its forked ends is pushed onto two bolts40. arranged. on'the shaft-collar 39. On charging with steam, the wallsare lifted by means of the joints 4 secured to the same and resting onthe collar. On discharging steam, the walls arclowe'red by means oftheir weight against the action of the spring, acting from below andarranged in the piston or outside the same. The lifting cylinder iscontrolled by a two-way cock.

The pivoted piston-rods of the extension cylinders 1 of all fourconstructions operate the walls by means of their roller-joints 41(Figs. 1 112016;) and operating shaft: st

cured in the two ll-shapedmembersi. 4 The joints diiprevent unfavourablepressures and shocks on the piston'r rodr The "twoextenssion-cyilinders1 en each'wal l are fed bytwo separate :SJCGHFHI p'p'es and arecontrolled by a common three ivay cocln The :front c. ittmg 'edges ofthe snow-plow form elther the wall-covering sheets rolled round thejoints 4 Figs 2 and 51) or the cutting .naeanssshown in Figs. and 15..The

latter is formed by a strong pointed plate 4?),avhose oneendis rivetedto the wall of the snow plo-w,[while the other endiswslid ably guided inslots 44 {of the snow plow wzall by means of moving bolts 45. r The [twoWingsof the cutting plate 43--are rotatable about the:e'd'ge-slinktd'and, :as shown in Fig. 16, bozt'h ends may be .guidedain tlievsl'otted walls} Inorderito compensate the extended walls withrespect to-the initial'positionthe end :of the Wall isformed oftwo parts(Fig.

) ,whereby-bymeansof-suitable connecting I rods 48kandruconnecting"bolts49 'guidedgin slots of the wall, the movable endi'4'7fispositivelycoupled with thecutting p-late 43 and is positively guided with thesame, thus pulled-in or pushedout. a

Finally "the longitud'nal, fna-mes 50, which *connect the U-shaped framemembers 7 ,'::extQIlCll-Hg transverse to the axis-ofthe' rail, and

which extendparallelzto .the anisof the rail, areal-ranged extensible(Fig, 14) in order to obtain an effective strengthening of "thesnowtplow on the engine-frameznear the top face (of the irail'by meansofsli'ding outkthe flanged Wal l 51rtothe engineeclearer52. 7 The.

' snow plow is fixedeto' the front of thexengine byineans of therwedge.53 shown in Fig. 7. As illustrated-in F =1 to 6ythe side+wings :54 areoperated by single-chambercylinders 55 with yielding pistons and" rollerjoints.

"Wings-on shutting off thesteam'supply.

A ground support, secured .to *the bottom side of the lower framesupporting member p The spring 56 automatically draws in the f 5, servesfor removing the snow-plow. from the forward end of the engine or toerect it the place of useor to turn it around. The pivot gournal '57.,-secured in the centre of a square thread .58 and at the insidewith agravity. of thewsnovv-plow, is disposed in a sleeve, which isfurnish'ed'at the outside with curved "bottom. 'The screw threaded sleeve isarranged and operatesin the screw-threaded sleeve ofa rotatable disc SQand-the height of the pivot journal "57' can be adjustedby being screwedinto or out of the; latter.- A hole 60 is drilled through the twosleeves and the pivotjournal, and in the raised position drivers standof theengine. Thedesired ment.

cleaning position of the snowplow depends on the shape of the railingtravelled at the time. In case of a double railing the cleaning iseffected towardone side. In the event "of a single railing the cleaningis'carried out at the rightor left sideaccording to requireessary onlyto set the corresponding railway joint. :For their protection theshovels or scoopsare furnished with the known jaws.

The plow is erected, lifted off and turned round with the aid'of thedescribed groundsupport, whereby it is possible to change at any timethe clearing direction independent of the engine-turn-disc.

We claim 1. A snowplow for railway engines, comprising upright plateshinged together on an axis which bisects the line between the rails,pressure operated pistons connected with said plates to swing the platesoutwardly on vtheir hinge connection, and springs operating counter tothe pistons to return the plates'to their initial positions afterthepressure on the pistons is released.

' 2. A snow plow for railway engines, comprising an upright shaft to besupported centrally of the rails, walls hinged at their adjacent'uprightsides to said shaft, pressure operated means for each wall to swing thesame outwardly about the shaft, and spring means for returning each wallto its initial position.

3. A snow plow, as claimed in claim 2, in which the hinged wallsterminate in shovels at the lower ends, pressure operated pistonsconnected to each wall and shovel to elevate the same, and springconnections to return the walls and shovels t0 lowered positions.

.4. A snow plow, as claimed in claim 2, in which the-hinged wallsterminate in shovels at the lower ends, a rope and tackleconnection forthe walls and shovels, a pressure operated piston operating the rope andtackle to elevate thewalls and shovels, and spring 1 connectionsfor'lowering the same.

5. A' snow plow, as claimed in claim 2, in which the hinged wallsterminate in shovels at the lower ends, means for elevating saidwallsand shovels, pressure operated pistons I for actuating said means,and springs for lowering the shovels totheir initial positions.

7 6. A snow plow, as claimed in claim 2, including wingshinged to theoutside upright 7 sides of the walls, pressure operated pistonsforoperating the wings in outward direction,

and spring connectionstfor returning the wings to their initialpositions.

ln'testlmony whereof we aflix our signatures. a

' RUDOLF KLIMA. V I

HANS REISCHENBAOHER.

In order to obtain the desired positions of the wall-shovels and wingsit is nec-

